Abstract
We investigated and discussed the characteristics of blood circulation in the peripheral vestibular system by comparing that of cochleae. It was suggested that while embolic or thrombotic events occasionally occur in the vestibular end organs, they do not affect the cochleae. The vestibule, especially the saccule, has an environment which makes it vulnerable to hemodynamic transitional ischemia attacks (TIA) by the blood steal phenomenon. It has been assumed that the diagnostic criterion of VBI is assumed TIA in the vertebrobasilar artery area; however, a more peripheral site of the vestibular end organ also has an environment of TIA occurrence. Future treatment of inner ear disorders due to blood circulation disturbances should be performed according to the results of this study.
